Abrading device



' July 17, 1928.

P. SIVERTSEN ABRADING DEVICE Filed Nov. 24, 1925 INVENTOR PE TEE S/V'ERTSEN 4% m h 5 7% v Patented July 17, 1928.

PETER SIVERTSEN, OF NEW YORK, N. Y.

ABRADING DEVICE.

Application filed November 24, 1925. Serial No. 71,062.

This invention relates to sharpening devices and has more specialreference to knife Sharpeners adapted for use on slicing machines.

While the present invention is more especially adapted for use with theslicing machine disclosed in my copending application S. N. 319,059,filed August 22nd, 1919 in which a horizontal bar is located near therotary knife nevertheless the present invention may also be applied toother types of machines in which a supporting bar is found available andalso to appliances other than slicing machines.

Comprehensively stated the present invention comprises an abradingelement which is so mounted as to be capable of a universal compensatorymovement so that the knife may be ground at any bevel.

While one embodiment of the present invention is disclosed in theaccompanying drawing, it is to be understood that this embodiment merelyserves as an illustration of the underlying principles of the inventionso that they may be readily comprehended by those skilled in the art andare not intended as limiting the invention to the specific formdisclosed therein. 1

In said drawing v Fig. 1 is a top plan view of the invention.

Fig. 2 is a section of Fig. 1' on the line 22.

Fig. 3 is an end elevation of the and Fig. 4 is a section of Fig. 1 onthe line 4-4. 7

Continuing now by way of a more detailed description, a driven rotaryknife which is to be sharpened is indicated by A and a suitable rest orSupporting bar is indicated by B.v While the bar B is shown as anappurtenant to a slicing machine it is to be understood that the bar Bmight also be any bar which is temporarily placed in position to affordasupport for the device.

invention Irrespective of whether the bar is a permanent appurtenant toa slicing machine or other apparatus or is merely a temporary expedient,as above indicated, a rockable yoke C having oppositely disposeddependent forked.

flanges C is adapted to be set on the bar B with the forked ends Cstraddling it. This yoke has an aperture or bearing at D for wheelmounted at one end of the bar E in a manner to be more fully describedhereinafter. from the knife affords means for accommodating the grinderto the knifes wear while the change in inclinati on'of the plane of theabrading element affords means to control the bevel and also to presentfresh surfaces of the abrading element to the knife edge. A set screw Gof any convenient type is arranged to lock the bar E in predeterminedposition for grinding th-eknife and the pressure of the wheel F againsttheknife is accomplished by hearing down on the handle in the directionof arrow X and tilting the yoke C about the bar B as a fulcrum. The

The adjustment toward or away dependent flanges O hook over the bar andafford a firm support for the yoke and yet perm t the device to bequickly and easily applied and removed from the bar.

The abrading element F consistsof an abrading disk of'a suitableabrading material for example emery which is carried on a rotatablespindle F which in turn is jour nalled in a detachable socket H, thesocket having its upper end flanged at H to prevent it from passingthrough its receiving aperture in the end of the arm E when pres-. sureis applied to the arm E in the direction indicated. The lower portion ofthe journal hearing has a suitable thrust member H to afford a bearingon which the spindle may turn.

It is claimed:

1. An abrading device for slicing machines combining a manually operablebar, a rotatable abrading element mounted on said bar, a stationary bar,a. support having oppositely disposed dependent flanges adapted to thelower end of straddle the stationary bar, and an opening in thesup ortadapted to receive the manually 0 eraEle ban [2. in abrading device forslicing ma- 5 chines combining, a, stationary bar, a yoke havingoppositely disposed dependent flanges each of which is forked andadapted Y to straddle the bar, an arm slidably and r0- tatably mountedin said support, a detachable flanged socket in said arm, a rotatableabrading disk, a spindle carrying said disk and journalled in thesocket.

Signed at the city of New York in the county of New York, and State ofNew York, this 6th day of May, 1924.

' i 7 PETER SIVERTSEN.

